Private and confidential correspondence - Vacuum Oil Co, Jan. 1927-Apr. 1930. SR5B

Shell Australia Limited, Private and confidential correspondence - Vacuum Oil Co, Jan. 1927-Apr. 1930. SR5B (1927-1930), [UMA-ITE-2008004501363]. University of Melbourne Archives, accessed 13/12/2025, https://archives.library.unimelb.edu.au/nodes/view/309752